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Finding the Fourth Proportional to 129,980.93, 179,365.11 and 75,528.27

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Solution

The fourth proportional to 129,980.93, 179,365.11 and 75,528.27 is: 104,224.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,980.93 : 179,365.11 = 75,528.27 : x
  2. Step 2: Convert to fraction form
    129,980.93/179,365.11 = 75,528.27/x
  3. Step 3: Cross multiply
    129,980.93x = 179,365.11 × 75,528.27
  4. Step 4: Simplify right side
    129,980.93x = 13,547,136,456.66
  5. Step 5: Solve for x
    x = 13,547,136,456.66/129,980.93
  6. Step 6: Final answer
    x = 104,224.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.